/*
 * Copyright (c) 2020-Present Pivotal Software Inc, All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package reactor.core.publisher;

import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLongFieldUpdater;

import org.reactivestreams.Subscription;
import reactor.core.CoreSubscriber;

public class StressSubscription<T> implements Subscription {

	final CoreSubscriber<? super T> actual;

	volatile long requested;
	static final AtomicLongFieldUpdater<StressSubscription> REQUESTED =
		AtomicLongFieldUpdater.newUpdater(StressSubscription.class, "requested");

	public final AtomicInteger requestsCount = new AtomicInteger();
	public final AtomicBoolean cancelled = new AtomicBoolean();

	public StressSubscription(CoreSubscriber<? super T> actual) {
		this.actual = actual;
	}

	@Override
	public void request(long n) {
		requestsCount.incrementAndGet();
		Operators.addCap(REQUESTED, this, n);
	}

	@Override
	public void cancel() {
		cancelled.set(true);
	}
}
